1031203313223 has 4 divisors (see below), whose sum is σ = 1374937750968. Its totient is φ = 687468875480.

The previous prime is 1031203313219. The next prime is 1031203313291. The reversal of 1031203313223 is 3223133021301.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1031203313223 - 2² = 1031203313219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1031203313193 and 1031203313202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031203113223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171867218868 + ... + 171867218873.

It is an arithmetic number, because the mean of its divisors is an integer number (343734437742).

Almost surely, 2^{1031203313223} is an apocalyptic number.

1031203313223 is a deficient number, since it is larger than the sum of its proper divisors (343734437745).

1031203313223 is an equidigital number, since it uses as much as digits as its factorization.

1031203313223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343734437744.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 1031203313223 its reverse (3223133021301), we get a palindrome (4254336334524).

The spelling of 1031203313223 in words is "one trillion, thirty-one billion, two hundred three million, three hundred thirteen thousand, two hundred twenty-three".